Creating CMP entity beans from an imported data (Ftp web hosting)
Creating CMP entity beans from an imported data source The Verify Columns field is used to specify that the columns should be checked for validity just before a transaction is committed to make sure no other transaction has changed the column s data. Select Read if you want all columns that have been read during the transaction to be checked. Select Modified if you want only the columns that have been updated during the transaction to be checked. Select either Version or Timestamp to specify that a column containing version or timestamp data exists in the table and that this column is to be used to implement optimistic concurrency. The Optimistic Column field is enabled if you selected Version or Timestamp as a Verify Columns value. Select the column from the drop-down list that contains the version or timestamp value. For more complete information about optimistic concurrency, see your WebLogic documentation. You can use the inspector to reference another table and map columns in that table to fields in this entity bean using the Multiple Table Mapping option. The Single Table Mapping option is the default. To reference another table and map columns to fields in your bean, 1 Select the Multiple Table Mapping option. 2 Click the Add button to display a Table Map Editor. 3 Select the table you want to map columns to from the Table drop-down list: 4 Click and drag between the primary keys in the table on the left to the column you want to map the column to in the table on the right. Here you see the empNo field of the Employee bean being linked to the MNGR_NO column of the DEPARTMENT table. 50 Developing Applications with Enterprise JavaBeans
We provides quality the CPanel Web Hosting. All our web hosting plans regular, business and expert are competitively priced and unsurpassed in reliability, uptime, and quality of service.